Donald Trump is back on top in the latest Monmouth University poll — and this time his lead is bigger than ever. A survey of Republican voters released Monday found that Trump "now holds a more than 2-to-1 advantage over his nearest rivals, Jeb Bush and Scott Walker." Trump comes in first with 26 percent, followed by Bush (12 percent) and Walker (11 percent).

Monmouth reports that Trump's support has increased by 13 percentage points in the span of just three weeks, when the last Monmouth...